80068073891 has 16 divisors (see below), whose sum is σ = 88392487680. Its totient is φ = 72055534080.

The previous prime is 80068073879. The next prime is 80068073903. The reversal of 80068073891 is 19837086008.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80068073879) and next prime (80068073903).

It is a cyclic number.

It is not a de Polignac number, because 80068073891 - 2¹⁰ = 80068072867 is a prime.

It is a super-2 number, since 2×80068073891² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80068073801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714791 + ... + 819183.

It is an arithmetic number, because the mean of its divisors is an integer number (5524530480).

Almost surely, 2^80068073891 is an apocalyptic number.

80068073891 is a deficient number, since it is larger than the sum of its proper divisors (8324413789).

80068073891 is a wasteful number, since it uses less digits than its factorization.

80068073891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105886.

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 80068073891 in words is "eighty billion, sixty-eight million, seventy-three thousand, eight hundred ninety-one".